Home / 134,971.80-186,262.48-74,543.96

Finding the Fourth Proportional to 134,971.80, 186,262.48 and 74,543.96

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Solution

The fourth proportional to 134,971.80, 186,262.48 and 74,543.96 is: 102,871.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,971.80 : 186,262.48 = 74,543.96 : x
  2. Step 2: Convert to fraction form
    134,971.80/186,262.48 = 74,543.96/x
  3. Step 3: Cross multiply
    134,971.80x = 186,262.48 × 74,543.96
  4. Step 4: Simplify right side
    134,971.80x = 13,884,742,858.62
  5. Step 5: Solve for x
    x = 13,884,742,858.62/134,971.80
  6. Step 6: Final answer
    x = 102,871.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.